Seam-ripper.



PATENTED SEPT. 19, 1905.

- P.TREAT.

SRAM RIPPBR.

APPLICATION FILED MAR.18.1905.

ATTORNEY.

UNITED STATES PATENT oEEIoE.

FREDERICK. TREAT, OF PITTSFIELD, MASSACHUSETTS.

SEAIVl-RIPPER.

To a/ZZ whoml it may concern:

Be it known that I, FREDERICK TREAT, a citizen of the United States,residing at Pittsfield, in the county of Berkshire and Commonwealth ofMassachusetts, have invented new and usefullmprovements in Seam-Rippers,of which the following is a full and complete specification, such aswill enable those skilled in the art to which it appertains to make anduse the same.

This invention relates to seam-rippers; and one object thereof is toprovide an improved device which may be worn upon the end of the thumbor other finger for use as a threadcutter and seam opener and 'ripper ingarment-working and in such other like arts to which its peculiarfeatures may be adapted to facilitate and expedite manual operations;and withy this and other objects in view the invention consists of aseam-ripper formed as hereinafter described and claimed and is fullydisclosed in the following specification, of which the accompanyingdrawings form a part, correspondin g parts being` designated` by thesame reference characters in each of the views, and in which- Figure 1represents an interior view of my seam-ripper developed laterally. Fig.2 is a perspective rear view; Fig. 3, a bottom view of the instrument,and Fig. 4 a perspective front view of the same.

In the construction of my invention I provide a metallic strip or lbandA, Fig. 1, with rounded ends D and D gradually increasing in widthtoward the middle. is unilaterally expanded about the middle, so as toform th ereat an obtuse and rounded projection B, which is deeplyindented or cleft at one side, as shown at F, thereby forming a distinctand smaller projection C, extending laterally from said projection B.Said projection C is constructed inthe form of a pointed tooth or pick,while the entire edge thereof is beveled upon the inside, and sharpened,

so as to form a cutting edge or blade, said projection B being likewisebeveled and provided with la cutting edge, thereby enabling the operatorto use the same as a blade separately or in conjunction with the toothor pick C. The beveled edges of projections B and C are represented bythe character E in Figs. 1 and 2, while it will be apparent that thecleft F, formed by the conjunction of the projections B and C and thesharpened edges thereof, is also adapted for cutting purposes.

The strip or band A, Fig. 1, is normally Specicaton of Letters Patent.

Application filed March 18,1905. Serial No. 250,876.

Said strip Patented Sept. 19, 1905.

formed Ainto a circular body of conical shape, Figs. 2, 3, and 4, theends D' and D" overlapping, -thereby making substantially an open-endedthimble or ring which is expansible and adapted to adjust itself to thesize of the thumb or finger when placed upon the end thereof.

In operation my invention is placed upon the end of the thumb or finger,the blade B and pick C being turned upward to view and as shown in Fig.4, the blade B extending slightly beyond the Enger. By virtue of theoverlapping and expansible ends D and D the instrument when in positionfor operation contracts or expands conformably to variations in the sizeof the finger, while the conical shape of the instrument prevents thesame from' is employed to take up and sever the thread l uniting theparts, and if at any time the united parts offer undue resistance to theoperator the blade B with its sharpened edge E. is instantly thrustbetween them at the point of resistance and made to sever the thread,said blade B being specially adapted to this purpose by reason of itsobtuse nose, which is calculated not to catch or injure the cloth. Theedged cleft F is also well adapted for the severance of threads or seamsand for running incision of materials, when the pick C is not liable tointerfere with the operation or to cause injury.

My improved seam-ripper is simple in construction and operation,durable, inexpensive, and universally useful, while combining andpossessing merits not heretofore applied to instruments of thischaracter.

Having fully described my invention, l claim as new and desire to secureby Letters Patentl. An expansible, open-ended and broken thimble or bandwith overlapping edges and of conical form, provided at its smaller endwith two distinct and approximate projections of unequal size, obtuseand pointed, respectively, separated by an acute cleft; said projectionsand cleft being each provided with a beveled cutting edge, substantiallyas shown and described and` for the purpose set forth.

IOO

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2. A ripping and cutting,` instrument consisting of u conical,open-ended and broken thimble or band with expansible overlapping edges;Said thimble or band being provided at its smaller end with an obtuse,bevel-edged cutting-blade projecting therefrom, substantially as shownand described.

In testimony that I claim the foregoing as my invention l have hereuntosigned my nume, 1n the presence of the suhscrlhlng uil/nessus, lo this11th dey of March, A. I). 1005.

FREDERICK 'PREA'.V.

Witnesses:

JNO. J. VHIT'LLNSEY, ANNIE E. CowLIN.

